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    <title>Document</title>
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    <script>

        // try  尝试
        // catch  捕获

        let json = '[1,2,3' ;

        // console.log(JSON.parse(json));   // 报错


        try {
            console.log(JSON.parse(json));
        } catch(err) {
            console.log(err);
        }

        console.log(2);

    </script>
    
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